参数资料
型号: MAX8885EUK50+T
厂商: Maxim Integrated
文件页数: 8/8页
文件大小: 0K
描述: IC REG LDO 5V .15A SOT23-5
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
稳压器拓扑结构: 正,固定式
输出电压: 5V
输入电压: 最高 6.5V
电压 - 压降(标准): 0.165V @ 150mA
稳压器数量: 1
电流 - 输出: 150mA(最小)
电流 - 限制(最小): 160mA
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: SC-74A,SOT-753
供应商设备封装: SOT-23-5
包装: 带卷 (TR)
150mA, Low-Dropout Linear Regulator
with Power-OK Output
PSRR and Operation from Sources
Other than Batteries
The MAX8885 is designed to allow low dropout voltages
and low quiescent currents in battery-powered systems.
Power-supply rejection is 60dB at low frequencies (see
the Power-Supply Rejection Ratio vs. Frequency graph
in the Typical Operating Characteristics ).
Improve supply-noise rejection and transient response
by increasing the values of the input and output bypass
capacitors. The typical operating characteristics show
the MAX8885 ’ s line- and load-transient responses.
Load-Transient Considerations
The MAX8885 ’ s load-transient response graphs (see
Typical Operating Characteristics ) show three compo-
put capacitor is chosen to comply with the Region of
Stable C OUT ESR vs. Load Current graph.
Dropout Voltage
A regulator ’ s minimum input-output voltage differential
(or dropout voltage) determines the lowest usable sup-
ply voltage. In battery-powered systems, this will deter-
mine the useful end-of-life battery voltage. Because the
MAX8885 uses a P-channel MOSFET pass transistor,
its dropout voltage is a function of drain-to-source on-
resistance (R DS(ON) ) multiplied by the load current (see
Typical Operating Characteristics ).
V DROPOUT = V IN - V OUT = R DS(ON) · I OUT
nents of the output response. The first (and most signifi-
cant) component is the abrupt drop in output voltage
due to the capacitor ’ s ESR. The magnitude of the voltage
TRANSISTOR COUNT: 266
Chip Information
drop is directly proportional to the output capacitor's
ESR and the size of the load transient and is indepen-
dent of the regulator ’ s transient response. The second
component is the output voltage recovery, which is a
function of the regulator ’ s loop response and the capaci-
tance at the output. The third component is a DC shift in
the output voltage resulting from the regulator ’ s finite out-
put impedance. To improve the MAX8885 ’ s load-tran-
sient response, increase the output capacitor ’ s value
and decrease its ESR. Take care to ensure that the out-
Package Information
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
8 _____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
? 1999 Maxim Integrated Products
Printed USA
is a registered trademark of Maxim Integrated Products.
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